Yang Jie, Lu Chao, Zhang Zhi-Bin, Huang Yuan, Lin Li-Liang
Co-Innovation Center for Qinba Regions' Sustainable Development, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China.
Zoolog Sci. 2017 Aug;34(4):287-294. doi: 10.2108/zs160217.
The nearly complete mitogenomes of Bolivaritettix sikkinensis and Bolivaritettix yuanbaoshanensis were determined and compared with the mitogenomes of other 29 caeliferans. These two newly determined mitogenomes displayed the typical gene organization and composition, codon usage and AT skew of most Caelifera mitogenomes. A comparison of 31 orthopteran sequences revealed that the main causes of the differences in total length are an A+T-rich region and the length of IGS, even the rRNAs, and an AT content proportional to the value of AT-skew in the third position of PCGs. In Tetrigoidea, several tRNA were found to possess smaller TΨC or DHC loops and a number of special and conserved regions or motifs were found in tRNA genes and IGS, which may be useful as a molecular synapomorphy for this genus. ML and BI methods used in phylogenetic analysis revealed that Acridoidea species may have a close relationship with Tetrigoidea species.
测定了锡金玻蝗（Bolivaritettix sikkinensis）和元宝山玻蝗（Bolivaritettix yuanbaoshanensis）近乎完整的线粒体基因组，并与其他29种锥尾亚目昆虫的线粒体基因组进行了比较。这两个新测定的线粒体基因组展现出大多数锥尾亚目昆虫线粒体基因组典型的基因组织与组成、密码子使用情况以及AT偏斜。对31条直翅目序列的比较表明，总长度差异的主要原因在于富含A+T的区域、间隔区（IGS）的长度，甚至是核糖体RNA（rRNAs）的长度，以及密码子第三位的AT含量与AT偏斜值成正比。在短足蝗总科（Tetrigoidea）中，发现多个转运RNA（tRNA）具有较小的TΨC或DHC环，并且在tRNA基因和间隔区中发现了一些特殊且保守的区域或基序，这可能作为该属的分子共衍征。系统发育分析中使用的最大似然法（ML）和贝叶斯推断法（BI）表明，蝗总科（Acridoidea）物种可能与短足蝗总科物种关系密切。
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